* {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}
body,
h1,
h2,
h3,
html,
li,
nav,
p,
ul {
  margin: 0;
  padding: 0;
}
body {
  color: #000;
  overflow-x: hidden;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  -webkit-text-size-adjust: none;
  -moz-user-select: none;
  max-width: 540px;
  margin: 0 auto;
  background: #f4f4f4;
  font: normal 16px/1.5 PingFangSC-regular, Tahoma, Lucida Grande, Verdana, Microsoft Yahei, STXihei, hei;
}
li {
  list-style: none;
}
a {
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  color: #333;
}
img,
input {
  -webkit-touch-callout: none;
  vertical-align: middle;
}
input,
button {
  outline: none;
  border: 0;
}
em,
i {
  font-style: normal;
}
@font-face {
  font-family: 'iconfont';
  src: url('../font/iconfont.woff2?t=1622111823092') format('woff2'), url('../font/iconfont.woff?t=1622111823092') format('woff'), url('../font/iconfont.ttf?t=1622111823092') format('truetype');
}
em {
  font-family: 'iconfont';
}
header {
  width: 100%;
  max-width: 540px;
  height: 50px;
}
header .search {
  position: fixed;
  display: flex;
  top: 0;
  left: 50%;
  transform: translate(-50%, 0);
  width: 100%;
  max-width: 540px;
  height: 50px;
  padding: 12px 12px 6px;
  background-color: #fff;
  z-index: 999;
}
header .search a {
  display: flex;
  width: 100%;
  height: 100%;
  border: 1px solid #0086f6;
  border-radius: 16px;
  align-items: center;
  font-size: 15px;
  color: #999;
}
header .search a em {
  width: 20px;
  height: 20px;
  margin: 0 5px 0 15px;
  color: #666;
}
footer {
  height: 50px;
}
footer .footer_nav {
  position: fixed;
  display: flex;
  bottom: 0;
  left: 50%;
  transform: translate(-50%, 0);
  width: 100%;
  max-width: 540px;
  height: 50px;
  background-color: #fff;
}
footer .footer_nav .current {
  color: #0086f6;
}
footer .footer_nav a {
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: #666;
}
footer .footer_nav a em {
  font-size: 20px;
}
footer .footer_nav a i {
  font-size: 12px;
}
